tissue
Definition
A tissue is a group of cells that are similar in structure and function. There are four main types of tissue in the body: epithelial tissue, connective tissue, muscle tissue, and nervous tissue.
Epithelial tissue covers the body and lines its organs and cavities. It protects the body from infection and helps to regulate its temperature.
Connective tissue holds the body together and provides support. It also transports nutrients and oxygen to the cells and removes waste products.
Muscle tissue allows the body to move. There are three types of muscle tissue: skeletal muscle, smooth muscle, and cardiac muscle.
Nervous tissue carries messages throughout the body. It is made up of neurons, which are cells that transmit electrical signals.
How can the word be used?
The plant was covered in a thin layer of tissue.
Different forms of the word
Noun:
- a thin, soft, and often translucent layer of material, especially of animal or vegetable origin.
- a group of similar cells that together perform a specific function in an organism.
- a piece of absorbent paper used for blowing the nose or packing presents.
Verb:
- to form or arrange into a tissue.
Etymology
The word "tissue" comes from the Old French word "tissu", which means "woven".
The first recorded use of the word "tissue" in English was in the 14th century.
The word "tissue" is a French word, and it is not related to any other words in English.
Question
Where might you find tissue?